Dock



FIG. 1 is a perspective view of a dock.

FIG. 2 is a front view of the dock of FIG. 1.

FIG. 3 is a right view of the dock of FIG. 1.

FIG. 4 is a rear view of the dock of FIG. 1.

FIG. 5 is a left side view of the dock of FIG. 1; and,

FIG. 6 is a top view of the dock of FIG. 1.

The broken lines illustrate environment and/or boundaries of the claimed design, and form no part of the claimed design. 

CLAIM The ornamental design for a dock, as shown and described. 